Sticky fly-paper



(No Model.)

0. 8v W. THUM.

STIGKY- FLY PAPER.

Patented Deo. 29, 1891.

UNITED` STATE-s PATENT OFFICE.

OTTO TI-IUM AND WILLIAM THUM, OF GRAND RAPIDS, MICHIGAN.

SHTICKY FLY-PAPER.

SPECIFICATION forming part of Letters` Patent No. 466,199, dated December 29, 1891.

Application tiled October 9, 1890.

Serial No. 367,528. (No specimens.)

To @ZZ whom it may concern.-

Be it known that we, OTTO THUM and WIL- LIAM THUM, citizens of the United States of America, residing at Grand Rapids, in the county of Kent and State of Michigan, have invented certain new and useful Improvements in Fly-Paper, of which the followin gis a specification.

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' nected sheets together, so as to prevent the catching material from escaping from the uncoated margin; but such clamps, while effective to a greater or less degree, are not desirable, as they are expensive; but when the clamp is removed from the package of sticky ily-paper sheets no further protection is afforded to the remainder of the sheets unless the clamps be replaced. Other forms of protcction with the same object in view have been devised, some of them being designed for use with a package of sheets, and others interposed between the portions of two sheets or a folded sheet, and it is to this latter class that our invention particularly relates.

WVe aim to provide by the present invention a sealing-border which is easy of application, permits ready separation of the sheets, prevents leakage of the catching material to the clean margins, and one that is composed of inexpensive material, and being applied to each sheet or pair of sheets allows the ready removal of any number of sheets without affecting the seals of the sheet or sheets remaining in the package.

The invention consists of a strip of paper forming a sealing-border interposed on the margin of the catching material and between the opposing surfaces to forma barrier to the flow of the said material to the uncoated margin of the sheet, said sealing-strip having one part attached to one side of the y-paper and another part to the other side of said flypaper and having an unattached portion adapted to be severed in the separation of ily-paper.

It will be understood that the invention may Y be varied in many ways without departing from the spirit of our invention, which consists, broadly, in a sealing-border connected to the opposing faces and separable in its width, and we do not limit ourselves to the two forms shown. It will also be understood that whenever reference is made to the sheets of sticky ily-paper the language may refer to two independent sheets placed face to face or to a single sheet folded centrally.

In the gures above referred to, A represents the foundation sheet, upon which the catching material is applied, leaving the clean margin c, which is free from the catching material. To prevent the flow of the catching material to the clean margin, we provide a sealingborder, which in Fig. 1 is a strip h of paper or equivalent material, folded in its center longitudinally, with one fold or margin c secured to the face of one sheet by the use of any adhesive substance or in any other way, while the other fold or margin is secured in like manner to the face of the other sheet, thus providing a barrier between the clean margin of the sheets and the sticky material. Thelline of the fold, which preferably extends inward of' the strip, is between the attached margins and is itself unattached, and when it is desired to separate the sheets for use the strip will separate on the lineof the fold, and

thus the sheets may be used independently,

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part attached directly to one sheet only ot the 'Hy-paper and the other margin or part of the strip attached directly to the other sheet of the fly-paper, the said strip having an intermediate line not so directly attached and separable by rupture when the fly-paper sheets are separated.

In testimony whereof weaiix our signatn res in presence of two Witnesses.

OTTO THUM. WILLIAM THUM.

lVitnesses:

FREDERICK LOETTGERT, A. A. FLoCZYNsKI. 

